Retro 7 versions and identifications

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  • Cunha
    Certified Post Whore
    • Jul 2020
    • 2027

    #1

    Retro 7 versions and identifications

    Anyone care to post information about the r7 versions and ways to identify them?

    for posterity.
  • Jackson
    MCB Member
    • Apr 2022
    • 130
    • Pittsburgh, PA

    #2
    Gen 1 and 2 have a small CO2 knob with grooves. Gen 3 changed this to a larger diameter knurled knob. This is probably the easiest to quickly identify.

    On Gen 1 and 2 the air transfer piece between the valve body and frame is threaded into the valve body and o-ring seals to the frame. On Gen 3, this piece seals with o-rings to both pieces.

    Gen 1 serial numbers are hand stamped, spelled out, under the grip panels, ONE to ELEVEN. Gen 2 serial numbers are hand stamped, numbered under the grip panels. Gen 3 serial numbers and machined in near the front of the frame.

    New features for Gen 3:
    -anti double feed detent, works like a charm
    -refined trigger geometry to maximize compatibility and consistency
    -smaller trigger pin setscrew for cleaner appearance
    -bigger radiuses around the grip area for extra comfy handling
    -new plug-in style transfer port to replace the thread-in style, much more consistent
    -overbored valve body for added volume around the cupseal (thinking ahead for LP tuning)
    -optional locking setscrew hole between valve body and receiver snub
    -refined tolerances for a tighter overall fit between frame, receiver and valve body



    I think the Gen 1 had a thinner trigger plate and this was made thicker on Gen 2 going forward? Not sure, going off of memory for this.

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    • ketzer7
      20 year time machine
      • Apr 2021
      • 252
      • Southern NH

      #3
      Lt. head-shot also has this write-up which is pretty good. Doesn't distinguish generations, but lots of useful info

      https://www.mcarterbrown.com/forum/p...ux-avratech-r7

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